Fig. 2

Simple workflow in XML format. This example shows a simple Watchdog workflow executing a 30 second sleep task. A constant named WAIT_TIME is defined within the settings environment (line 5). Email notification of the user is enabled using the optional mail attribute of the tasks environment (line 8). Here, a task of type sleepTask with id 1 and name sleep is defined (lines 9-13). Either id or name can be used to refer to this task in dependency declarations of other tasks. Within the parameter environment of the sleepTask, values are assigned to required parameters (lines 10-12), which were specified in the XSD file of this particular module. In this case, the parameter wait is set to the value stored in the constant WAIT_TIME (line 11)